Hybrid zero-voltage switching (ZVS) control for power inverters
A power inverter combination includes a half-bridge power inverter including first and second semiconductor power switches receiving input power having an intermediate node therebetween providing an inductor current through an inductor. A controller includes input comparison circuitry receiving the inductor current having outputs coupled to first inputs of pulse width modulation (PWM) generation circuitry, and a predictive control block having an output coupled to second inputs of the PWM generation circuitry. The predictive control block is coupled to receive a measure of Vin and an output voltage at a grid connection point. A memory stores a current control algorithm configured for resetting a PWM period for a switching signal applied to control nodes of the first and second power switch whenever the inductor current reaches a predetermined upper limit or a predetermined lower limit.
- Research Organization:
- University of Central Florida Research Foundation, Inc. Orlando, FL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- EE0003176
- Assignee:
- University of Central Florida Research Foundation, Inc. (Orlando, FL)
- Patent Number(s):
- 9,484,840
- Application Number:
- 14/471,961
- OSTI ID:
- 1330713
- Resource Relation:
- Patent File Date: 2014 Aug 28
- Country of Publication:
- United States
- Language:
- English
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